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Comment on "The Mass-Radius relation for Neutron Stars in gravity" by S. Capozziello, M. De Laurentis, R. Farinelli and S. Odintsov
Stoytcho S. Yazadjiev, Daniela D. Doneva
In the present comment we discuss the qualitative and the quantitative differences between the neutron stars models in gravity presented in the recent paper \cite{Capozziell…
A gravitational wave afterglow in binary neutron star mergers
Daniela D. Doneva, Kostas D. Kokkotas, Pantelis Pnigouras
We study in detail the f-mode secular instability for rapidly rotating neutron stars, putting emphasis on supermassive models which do not have a stable nonrotating counterpart. Su…
Orbital and epicyclic frequencies around neutron and strange stars in gravity
Kalin V. Staykov, Daniela D. Doneva, Stoytcho S. Yazadjiev
According to various models, the orbital and the epicyclic frequencies of particles moving on a circular orbit around compact objects are related to the quasi-periodic oscillations…
Asteroseismology of rapidly rotating neutron stars - an alternative approach
Daniela D. Doneva, Kostas D. Kokkotas
In the present paper we examine gravitational wave asteroseismology relations for f-modes of rapidly rotating neutron stars. An approach different to the previous studies is employ…
The I-Q relations for rapidly rotating neutron stars in gravity
Daniela D. Doneva, Stoytcho S. Yazadjiev, Kostas D. Kokkotas
In the present paper we study the behavior of the normalized - relation for neutron stars in a particular class of theories of gravity, namely the gravity that i…
Gravitational wave asteroseismology of neutron and strange stars in gravity
Kalin V. Staykov, Daniela D. Doneva, Stoytcho S. Yazadjiev +1
We study the oscillations of neutron and strange stars in gravity. More precisely the nonradial -modes are examined and the differences with pure general relativity are in…